As direct Champions League rivals Frankfurt, Leverkusen and Leipzig lost on Matchday 24, BVB could have moved three points clear of third place and five of fifth.

"As a coach, you don't feel comfortable because you want the lads to do more to add a second [after taking the lead]," Stoger continued.

"I'm not satisfied with the match. We were in the lead and we should have kept the pressure up. We had a lot of control without creating any intent to score goals. We just wanted to sit on the lead.

"I can't comprehend it. In the last 10 minutes, we managed to raise our game again. But we wished for that to happen when it was 1-0. Adding a second would have made things much easier. I don't think we are expecting anything impossible of the lads."

The uninspired performance by the home side did not help to improve a hollow atmosphere, as only 54,300 spectators attended the Westfalenstadion, which has a capacity of over 81,000 for domestic games.

Due to the new TV contract, the Bundesliga has introduced six different kickoff times for the 2017-18 campaign, including a new kickoff slot at 1:30 p.m. on Sunday and five matches held on Monday.

"It hurts a lot of fans," Dortmund boss Hans-Joachim Watzke told Eurosport ahead of the game. "The season ticket holders have paid for the game but want to take a stance against the commercialisation.

"You have to take it seriously and accept it. I don't think it's just about the Monday fixture. Rather, the Monday fixture has become a vehicle to air a more general discontent. I did not expect the resentment toward the five Monday fixtures to be that immense."

Dortmund will travel to Leipzig next on Saturday, looking to increase the gap on a direct competitor for the Champions League spots.